The EcoBoost 3.5L is a twin-turbocharged V6 engine from Ford Motor used to power midsize and full-size cars, pickup trucks, supercars and utility vehicles, or more commonly known as SUVs. Featuring a dual overhead cam (DOHC) design, in a V configuration, the Ford 3.5L EcoBoost architecture has been part of the Ford EcoBoost family of turbocharged engines since 2010.

This engine first saw life in the 2010 Lincoln MKS and is heavily derived from the Ford Duratec 35 V6 engine block. When used for truck applications, like in the Ford F-150, the engine uses a pair of BorgWarner K03 turbochargers capable of spinning up to 17,000 rpm all while providing up to 15 psi of boost. Transverse applications, like in the Ford Taurus, for example, utilize a pair of Garrett GT1549L turbochargers instead, for a maximum boost of 11 psi. Such flexibility makes the Ford 3.5L EcoBoost the most versatile engine within the Ford lineup, allowing it to power a wide range of vehicle types.

In 2015, this engine saw an important update by way of significant mechanical revisions. Among them was the addition of port fuel injection, and electronically actuated wastegates for the turbochargers. The turbines themselves were also re-engineered, with lighter wheels for increased responsiveness and sharper vane angles to allow boost to climb 2.5 psi respectfully. The engine’s cam drive system also changed from a single primary chain to a more resistant dual-chain design, with separate chains driving each cylinder bank. Compression ratio also went from 10.0:1 to 10.5:1 (3.5L EcoBoost High Output for the Ford Raptor remained at 10.0:1), and the engine’s variable camshaft (VCT) design was modified for improved durability. The Ford 3.5L EcoBoost engine powers the following vehicles:

• Ford Explorer
• Ford Expedition
• Ford Flex
• Ford F-150
• Ford GT
• Ford Police Interceptor Utility
• Ford Police Interceptor Sedan
• Ford Taurus
• Ford Transit
• Lincoln MKS
• Lincoln MKT
• Lincoln Navigator

Overview

Metric	Value
Engine family	EcoBoost
Displacement	3.5 liter
Aspiration	Twin turbo
Configuration & cylinders	V configuration, six cylinders
Vehicle engine orientation	Transverse / longitudinal
Valve configuration	Dual overhead cam (DOHC) with variable camshaft timing (VCT)
Assembly sites	Brook Park, Ohio
Predecessor	Ford Duratec 35 V6
Successor	Currently none

Specifications

Metric	Value
Bore	92.5 mm
Stroke	86.6 mm
Compression ratio (2011 – 2016)	10.0:1
Compression ration (2017 +)	10.5:1
Max power @ RPM	647 @ 6,250 rpm
Max torque @ RPM	630 lb-pi @ 5,900 rpm
Cylinder head	Aluminum
Cylinder block	Cast aluminum
Camshaft drive	Chain

Vehicle Applications

Vehicle	Transmission	Drive Wheels	Power@ RPM	Torque (lb-ft) @ RPM
Ford Explorer Sport (2013 – 2019)	Six-speed automatic	AWD	365 @ 5,500	350 @ 3,500
Ford Explorer Platinum (2016 – 2019)	Six-speed automatic	AWD	365 @ 5.500	350 @ 3,500
Ford Expedition / Expedition EL (2015 – 2017)	Six-speed automatic	RWD / 4WD	365 @ 5,000	420 @ 2,250
Ford Expedition (2018 +)	Ten-speed automatic	RWD / 4WD	375 @ 5,000	470 @ 2,500
Ford Expedition Platinum (2018+)	Ten-speed automatic	RWD / 4WD	400 @ 5,000	480 @ 3,250
Ford Flex (2010 – 2012)	Six-speed automatic	AWD	355 @ 5,700	350 @ 3,500
Ford Flex (2013-2020)	Six-speed automatic	AWD	365 @ 5.500	350 @ 3,500
Ford F-150 (2011 – 2016)	Six-speed automatic	RWD / 4WD	365 @ 5,000	420 @ 2,500
Ford F-150 (2017 +)	Ten-speed automatic	RWD / 4WD	375 @ 5,000	470 @ 2,500
Ford F-150 Limited (2019 +)	Ten-speed automatic	RWD / 4WD	450 @ 5,000	510 @ 3,500
Ford F-150 Raptor (2017 +)	Ten-speed automatic	4WD	450 @ 5,000	510 @ 3,500
Ford GT	Seven-speed dual-clutch automatic	RWD	647 @ 6,250	550 @ 5,900
Ford Police Interceptor Utility (2014 – 2019)	Six-speed automatic	AWD	365 @ 5.500	350 @ 3,500
Ford Police Interceptor Sedan (2013 – 2019)	Six-speed automatic	AWD	365 @ 5,500	365 @ 5,500
Ford Taurus SHO (2010 – 2019)	Six-speed automatic	AWD	365 @ 5,500	350 @ 3,500
Ford Transit (2015 – 2019)	Six-speed automatic	RWD	320 @ 5,500	400 @ 2,250
Ford Transit (2020 +)	Ten-speed automatic	RWD	320 @ 5,500	400 @ 2,250
Lincoln MKS (2010 – 2012)	Six-speed automatic	AWD	355 @ 5,700	350 @ 3,500
Lincoln MKS (2013 – 2016)	Six-speed automatic	AWD	365 @ 5,500	350 @ 3,500
Lincoln MKT (2010 – 2012)	Six-speed automatic	AWD	355 @ 5,700	350 @ 3,500
Lincoln MKT (2013 +)	Six-speed automatic	AWD	365 @ 5,500	350 @ 3,500
Lincoln Navigator / Navigator L (2015 – 2017)	Six-speed automatic	RWD / 4WD	380 @ 5,250	460 @ 2,750
Lincoln Navigator (2018 +)	Ten-speed automatic	RWD / 4WD	450 @ 5,000	510 @ 3,500